This is the first edition of the User guide to AAMA/WDMA/CSA 101/I.S.2/A440, NAFS 2011— North American Fenestration Standard/Specification for windows, doors, and skylights. It is jointly published by the American Architectural Manufacturers Association (AAMA), the Window & Door Manufacturers Association (WDMA), and CSA Group.
Intended users of NAFS include code officials, manufacturers, architects, engineers, consumers, builders, contractors, trade associations, test labs, specifiers, and government agencies. This user guide is intended to provide those users with guidance for the proper application of NAFS. It contains informative commentary, illustrations, and examples to help answer some of the more common questions associated with NAFS.